supply of 12 v, 7 ah sealed maintenance free (smf) re-chargeable lead acid battery for led based emergency light for passenger coaches as per rdso specification no. rdso/pe/spec/ac/0180-2016 (rev.0).12 v, 7 ah sealed maintenance free (smf) re-chargeable lead acid battery for led based emergency light for passenger coaches as per rdso specification no. rdso/pe/spec/ac/0180-2016 (rev.0).,12 v, 7 ah sealed maintenance free (smf) re-chargeable lead acid battery for led based emerg ency light for passenger coaches as per rdso specification no. rdso/pe/spec/ac/0180-2016 (rev.0). makes e xide, tafe (amco), amararaja, hbl only accepted. oem or their authorized dealers only to quote with docum entary evidence. [ warranty period: 12 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ]